Home / 30,691.14-42,357.39-17,262.90

Finding the Fourth Proportional to 30,691.14, 42,357.39 and 17,262.90

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Solution

The fourth proportional to 30,691.14, 42,357.39 and 17,262.90 is: 23,824.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,691.14 : 42,357.39 = 17,262.90 : x
  2. Step 2: Convert to fraction form
    30,691.14/42,357.39 = 17,262.90/x
  3. Step 3: Cross multiply
    30,691.14x = 42,357.39 × 17,262.90
  4. Step 4: Simplify right side
    30,691.14x = 731,211,387.83
  5. Step 5: Solve for x
    x = 731,211,387.83/30,691.14
  6. Step 6: Final answer
    x = 23,824.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.